hollingsworth



I (No Model.)

L. R. HOLLINGSWORTH.

INSTRUMENT FOR MEASURING LENGTHS, GRADES, AND DIRECTIONS OF LINES. No. 349,590.

m Patented Sept. 21, 1886.

yawmaa LUTHER It. HOLLINGSXVORTH, OF EHMET,ARKANSAS.

ihSTRUil/IENT FOR MEASURING LENGTHS, GRADES, AND DIRECTIONS OF LINES.

TCIEICAZ'IOEI forming part of Letters Patent No. 349,590, dated September 21, 1886,

Application tiled May 18, 1886. Serial No. 202,520. (Xe model.)

To aZZ whom it may concern.-

Be it known that l, Lurnnn It. Honmxcs won'rn', a citizen of the United States, residing at lhnmet, in the county of Nevada and State of Arkansas, have invented certain new and usel'ul Improvements in Surveying, Grading, Leveling. and Measuring Land; and I do do clare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghadtothe accompanying drawings, and to the letters and ligures ol' reference marked thereon, which form a partof this speciiica iion.

My invention has relation to surveying, grading, leveling, and laiul-measuring instruments; and it consists in the novel construction and arrangement of its parts, as hereinafier fully set forth in the claims.

In the accompanying drawings. Figure l is a side elevation of my invention, and Fig. 2 is atop plan view of the same.

My invention is described follows:

A. is the horizontal beam upon which the machine is built.

13 is the front guiding-wheel. lt is journalcd in an upright fork, U, which is pivoted in the front end of the beam A.

l) is a quadrant divided into degrees. it works horizontally on the upper face 01' the beam A, and is seeured to the upright beam C by the two arms d d. This quadrant hasin it a slot, d, the entire length of the quadrant, through which a thumbscrew, (1", works and screws into the beam, grasping the quadrant between its shoulder and the beannl'or the pun pose of setting the wheel at any angle.

E is a pointer to indicate at what angle the wheel B is set. The object of this arrange ment is to be able to so set the wheel 13 that it will cause the machine to describe or out any circle desired.

(in the upper face of the beam A, and about theiniddlc ol' the san1e,is mounted a triangle, F, the base terminating in a graduated sector, its circular edge being down. From the apex of the triangle F is suspended a plumb, f, from which extends a linger, J. The said plumb swings on the rear side of the circular bracef, while the finger swings on the front face of the same. This is to prevent lateral play of the plumb and linger. The purpose of the last above-described arrangement is to enable the operator to ascertain the grade of the ground over which he is moving the in strument.

In the perpendicular slot in the rear end of the horizontal beam A is journaled a wheel, H. This wheel is sixteen and one-halffeet in circu inference, and is marked off in feet, except the one-half feet, which is indicated by the tinark. At this L-mark is a pin, H, protruding from the side of the wheel, which snaps the wire spring It each time the wheel makes a revolution. Each time that this wire spring h is snapped it pulls down the wire it", the up per end of which is connected with a registering device, 71. Thus cachrevolntion of the wheel H is registered, and when the operator comes to the end of a line he can see by looking at his register how many revolutions the wheel has made. I do not confine niyselfto this particular size of wheel. From the periphery of this wheel ll extend pins /1, which are onei'oot apart, except the pin at the one half-foot mark. the wheel, and also leave a track thatmay be traced, if necessary.

To the rear end of the beam A is secured a scraper, l, which loosely embraces the rim of the wheel and cleans from it all trash, dirt, &c., that may adhere to it as it is revolved. This scraper has an outward bend, for the pin /2 to pass under, and a rear outward bend, I,for the pins 71 to pass under.

Immediately in the rear of the registering device is a surveyors compass, K, provided with sights 7;, and with alongitudinal level,7.:, and a crosslevel is, the purpose of which need not be explained. On the right side of theinstrument are two knobs, L, by means of which the machine is held and guided.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a surveying and measuring instrument, as above described, the combination of the beam A, wheel 13, journalcd in fork C, fork G, pivoted in beam A, quadrant D, having the arms (Z and slot (1', thumb-screw d, linger E, wheel H, journaled in the rearend of They secure the rotation of and wheel H, of triangle F, having the brace' f, mounted on the upper face of beam A, its base terminating in the graduated sector f, plumb f suspended from the apex of said triangle, and iingerf pending from said plumb, substantially as shown and described.

3. In a surveying and measuring instrument,

as above described, the combination,with the wheel B, fork O, quadrant D, pointer E, triangle F,sectorf, and plumb and finger ffflof wheel H, journaled in the slot 9 of the beam A, having the pins 71., pin 71, springwire 71 wire h", and registering device 71, substantially as shown and described.

4. Ina surveying and measuring instrument, as above described, the combination of the wheel B, fork O, quadrant 1), wheel H,

and surveyors compass K,register h, wire 71 spring-wire h, and pin 71, projecting from the face of wheel H, substantially as shown and described.

5. In a surveying and measuring instrument, as above described, the scraper I, se-

cured to the rear end of the beam A and loosely embracing the rim of the wheel H, and having the outward bends 13 and i, substantially as shown and described, and for the purpose set forth.

6. The surveying and grading, leveling, and

land-measuring instrument, consisting of the front wheel,B, j ournaled in the upright fork O,

-the said fork G,pivoted in the horizontal beam A, quadrant D, secured to said fork C and working on the upper face of said beam A, and adapted to be set by thumb-screw d, triangle F, mounted on the upper face of beam A, and having the graduated sector f and plumb and fingers ff'-', wheel H, journaled in the rear end of beam A, having pins hrising from its periphery, and pin it projecting from the side of its rim, spring-wire h, secured to same beam A and operated by said pin 71., wire 71, and register h, operated by said wire 71*, sur- Veyors compass K, attached to said beam A, and scraper I, attached to said beam A and loosely embracing the rim of said wheel H, all substantially as shown and described, and for the purpose set forth.

In testimony whereof Iaffix my signature in presence of two witnesses.

LUTHER R. HOLLINGSWORTH.

Witnesses:

R. F. ELGIN,

H. STAINTON. 

